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2251101 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, body_style: EXTERNAL FLANGE, corner_shape: SQUARE ALL CORNERS, overall_length: 0.202 INCHES NOMINAL IN, flange_diameter: 1.993 INCHES MINIMUM AND 1.996 INCHES MAXIMUM IN, body_inside_diameter: 1.810 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-428-2122, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
2251101
NSN: 4320-00-428-2122
FSC: 4320
CAGE: 00153 — BEI SENSORS & SYSTEMS CO. INC DBA EDCLIFF INSTRUMENTS DIVISION (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
body_styleEXTERNAL FLANGE
corner_shapeSQUARE ALL CORNERS
overall_length0.202 INCHES NOMINAL IN
flange_diameter1.993 INCHES MINIMUM AND 1.996 INCHES MAXIMUM IN
special_featuresEXTERNAL FLANGE COUNTERBORED TO DEPTH 0.038 MIN 0.042 MAX AND DIAMETER 1.934 MIN 1.940 MAX ALSO BODY COUNTERBORED TO DEPTH 0.093 MIN 0.095 MAX AND DIAMETER 1.885 MIN 1.895 MAX ALL MEASUREMENTS INCHES
body_inside_diameter1.810 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
body_outside_diameter1.980 INCHES MINIMUM AND 1.990 INCHES MAXIMUM IN
left_side_flange_thickness0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
material_document_and_classification225110 MFR REF SINGLE MATERIAL RESPONSE
NSN4320-00-428-2122
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 2251101 MFR RING,WEARING
KEY FEATURES
•
LEFT SIDE FLANGE THICKNESS: 0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: 225110 MFR REF SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 1.810 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
•
BODY STYLE: EXTERNAL FLANGE
•
FLANGE DIAMETER: 1.993 INCHES MINIMUM AND 1.996 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
TECHNICAL CHARACTERISTICS (FLIS)
LEFT SIDE FLANGE THICKNESS0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATION225110 MFR REF SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER1.810 INCHES MINIMUM AND 1.820 INCHES MAXIMUM IN
BODY STYLEEXTERNAL FLANGE
FLANGE DIAMETER1.993 INCHES MINIMUM AND 1.996 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
SPECIAL FEATURESEXTERNAL FLANGE COUNTERBORED TO DEPTH 0.038 MIN 0.042 MAX AND DIAMETER 1.934 MIN 1.940 MAX ALSO BODY COUNTERBORED TO DEPTH 0.093 MIN 0.095 MAX AND DIAMETER 1.885 MIN 1.895 MAX ALL MEASUREMENTS INCHES
BODY OUTSIDE DIAMETER1.980 INCHES MINIMUM AND 1.990 INCHES MAXIMUM IN
OVERALL LENGTH0.202 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS28778-10Interchangeable
interchangeable cross-reference
interchangeable
I15624PD832-9Interchangeable
interchangeable cross-reference
interchangeable
2251-10Interchangeable
interchangeable cross-reference
interchangeable
2251101Interchangeable
interchangeable cross-reference
interchangeable
CS4310-0063Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2251101?
2251101 is a RING,WEARING.
What parts can replace 2251101?
There are 5 known substitutes for 2251101: MS28778-10, I15624PD832-9, 2251-10 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2251101?
2251101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-428-2122. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026